package com.jt.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.jt.mapper.UserMapper;
import com.jt.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * @Author: Li Yu
 * @Date: 2020/11/17 15:31
 */
@Service
public class UserServiceImpl implements UserService{

    private static Map<Integer,String> paramMap=new HashMap<>();
    static{
        paramMap.put(1,"username");
        paramMap.put(2,"phone");
        paramMap.put(3,"email");
    }

    @Autowired
    private UserMapper userMapper;

    @Override
    public List<User> doFindUser() {
        return userMapper.selectList(null);
    }

    @Override
    public boolean checkUSer(String param, Integer type) {
        //String column=type==1?"username":(type==2?"phone":"email");
        String column=paramMap.get(type);
        QueryWrapper<User> queryWrapper=new QueryWrapper<>();
        queryWrapper.eq(column, param);
        int count=userMapper.selectCount(queryWrapper);
        //return count>0?true:false;
        return count>0;
    }
}
